You answered it yourself??
The correct answer is sentence (5).
A sentence fragment means that it is only a part of a sentence; it is not complete. Given that it is incomplete, the fragment, aka subordinate/dependent sentence, has to be part of a larger, independent sentence, in order to make any sense. So if you combined sentence (5) with another one, it wouldn't be a fragment anymore.
Answer: they live in woodsy or somewhere near the woods, streets etc, doing things differently from what social norms expect of them
Explanation: A nonconformist is any one who refused to conform to social guidelines, orders, or customs either through their behaviors or perceptions. They do not accept the views of others on how things should be.
Example are; street performers, artist, activities etc. Some might even refuse to get a conventional job.
In today's society, there are different type of nonconformist, one would easily find them living in woodsy area or areas that are of close proximity to the woods, streets etc.
They live their lives according to their own personal views.